Color

#537f75

#537f75
hex#537f75
rgbrgb(83, 127, 117)
hslhsl(166, 21%, 41%)
oklchoklch(0.561 0.051 178.5)
Closest name: Ecological (#677f70)Relative luminance 0.183

Colors that go with #537f75

Charcoal, Champagne and Cobalt Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #537f75

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#7f535d

#537f5e · #53737f

#74537f · #7f7453

Split-complementary

Open in tool →

#7f5373 · #7f5e53

#5e537f · #7f535d · #737f53

Contrast

#537f75 as textRatioAAAA largeAAAFix
Aaon white
4.51:1passpassfail
  • AAA: use #3c5d55 as the text (7.27:1)
Aaon black
4.66:1passpassfail
  • AAA: use #6ea095 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #537f75 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #537f75
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #537f75 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/537f75-a2bebb-d459b1-1f2a2d-e9f1ec?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md